Although many were injured, it was first thought that there were no deaths. Unfortunately the riot was much worse than initially reported, and ten workers have now been pronounced dead, according to reports.

A Foxconn factory in Taiyuan, China — where many of Apple’s devices are assembled before being shipped — has had to be closed after 2,000 workers became involved in a “mass disturbance” on Sunday evening.

The fight reportedly broke out after a personal quarrel involving workers from two different production lines, but messages posted to Chinese microblogging network Sina Weibo have claimed that the brawl was actually caused by factory guards beating Foxconn workers.